A yeir (frae Auld Inglis gēar; Gothic jēr; Runic jēran) is a unit o time based on tha orbital period o tha Yird movin aroond tha Sun. Fur an observer at is oan tha Yird, thes corresponds tae tha period it taes tha sun tae complete a bodie coorse throoghit tha Zodiac alang tha ecliptic. In astronomy, tha Julian year is a unit o time at is defined as 365.25 days o 86400 SI seconds each (nae lowp seconds).SI units" accessed Februar 18, 2010. (see table fife an section fife.15.) reprintit frae "The IAU Style Manual (1989)" (PDF file) in IAU Transactions vol. xxb Thaur is nae universally acceptit seembol fur the year as a unit o time. The Internaitional Seestem o Units disnae propose a bodie. A common abbreviation in internaitional uisage is a (fur the Laitin wird annus), in Scots an Inglis an aw y or yr. Due tae the Yird's axial kelter, the coorse o a year sees the passin o the saisons, merked bi varioos changes in weaither, hoors o daylicht, an consequently vegetation an fertility. In temperate an subpolar regions, generally fower saisons ur recognised: ware, simmer, hairst an winter, each wi different temperatur an wather, astronomically merked bi the sun reachin the pynts o equinox an solstice—althoogh the climatic saisons lag behind thair astronomical markers. In some tropical an subtropical regions it is mair common tae spick o the rainy (ur dreich, or monsuin) saison versus the dry saison. A calendar year is an approximation o the Yird's orbital period in a gien calendar. A calendar year in the Gregorian calendar (as weel as in the Julian calendar) haes aither 365 (common years), or 366 (lowp years) days. The wird "year" is an aw uised o periods loosely associatit but nae strictly identical wi aither the astronomical or the calendar year, sic as the saisonal year, the fiscal year or the academic year, etc. Bi extension, the term year can pure techt the orbital period o onie planit: fur example, a "Maurtian year" is the time in which Maurs completes its ain orbit. The term is an aw applied mair broadly tae onie lang period or cycle, sic as the "great year".oed, s.v. "year", entry tae.b.: "transf. Applied tae a huir uv a lang period or cycle (in chronology an mythology, an vaguely in poetic uise)."
The year is aft dividit intae twal consecutive periods o time cried months: Januar, Februar, Mairch, Apryle, Mey, Juin, Julie, Augist, September, October, November, an Dizember.